[ViewVC] Diff of: cvs/Linux-AIO/AIO.xs

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.21 by root, Fri Aug 6 17:18:08 2004 UTC vs.
Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC

…		…
8	#include <sys/stat.h>	8	#include <sys/stat.h>
9	#include <unistd.h>	9	#include <unistd.h>
10	#include <fcntl.h>	10	#include <fcntl.h>
11	#include <signal.h>	11	#include <signal.h>
12	#include <sched.h>	12	#include <sched.h>
		13	#include <endian.h>
13		14
14	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	15	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
15	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	16	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
16	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	17	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
17		18
18	#define STACKSIZE 1024 /* yeah */	19	#if __i386 \|\| __amd64
		20	# define STACKSIZE ( 256 * sizeof (long))
		21	#elif __ia64
		22	# define STACKSIZE (8192 * sizeof (long))
		23	#else
		24	# define STACKSIZE ( 512 * sizeof (long))
		25	#endif
19		26
20	enum {	27	enum {
21	REQ_QUIT,	28	REQ_QUIT,
22	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,	29	REQ_OPEN, REQ_CLOSE,
		30	REQ_READ, REQ_WRITE, REQ_READAHEAD,
23	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK	31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
		32	REQ_FSYNC, REQ_FDATASYNC,
24	};	33	};
25		34
26	typedef struct {	35	typedef struct {
27	char stack[STACKSIZE];	36	char stack[STACKSIZE];
28	} aio_thread;	37	} aio_thread;
…		…
62	aio_thread *thr;	71	aio_thread *thr;
63		72
64	New (0, thr, 1, aio_thread);	73	New (0, thr, 1, aio_thread);
65		74
66	if (clone (aio_proc,	75	if (clone (aio_proc,
67	&(thr->stack[STACKSIZE]),	76	&(thr->stack[STACKSIZE - 16]),
68	CLONE_VM\|CLONE_FS\|CLONE_FILES,	77	CLONE_VM\|CLONE_FS\|CLONE_FILES,
69	thr) >= 0)	78	thr) >= 0)
70	started++;	79	started++;
71	else	80	else
72	Safefree (thr);	81	Safefree (thr);
…		…
88	{	97	{
89	nreqs++;	98	nreqs++;
90	req->next = 0;	99	req->next = 0;
91		100
92	if (qe)	101	if (qe)
		102	{
93	qe->next = req;	103	qe->next = req;
		104	qe = req;
		105	}
94	else	106	else
95	qe = qs = req;	107	qe = qs = req;
96		108
97	send_reqs ();	109	send_reqs ();
98	}	110	}
…		…
154	req->callback = SvREFCNT_inc (callback);	166	req->callback = SvREFCNT_inc (callback);
155		167
156	send_req (req);	168	send_req (req);
157	}	169	}
158		170
		171	static void
		172	poll_wait ()
		173	{
		174	fd_set rfd;
		175	FD_ZERO(&rfd);
		176	FD_SET(respipe[0], &rfd);
		177
		178	select (respipe[0] + 1, &rfd, 0, 0, 0);
		179	}
		180
159	static int	181	static int
160	poll_cb (pTHX)	182	poll_cb (pTHX)
161	{	183	{
162	dSP;	184	dSP;
163	int count = 0;	185	int count = 0;
164	aio_req req;	186	aio_req req;
165		187
166	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	188	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
167	{	189	{
		190	nreqs--;
		191
168	if (req->type == REQ_QUIT)	192	if (req->type == REQ_QUIT)
169	{	193	{
170	Safefree (req->thread);	194	Safefree (req->thread);
171	started--;	195	started--;
172	}	196	}
…		…
199		223
200	if (req->callback)	224	if (req->callback)
201	SvREFCNT_dec (req->callback);	225	SvREFCNT_dec (req->callback);
202		226
203	errno = errorno;	227	errno = errorno;
204	nreqs--;
205	count++;	228	count++;
206	}	229	}
207		230
208	Safefree (req);	231	Safefree (req);
209	}	232	}
…		…
216		239
217	static sigset_t fullsigset;	240	static sigset_t fullsigset;
218		241
219	#undef errno	242	#undef errno
220	#include <asm/unistd.h>	243	#include <asm/unistd.h>
		244	#include <linux/types.h>
221	#include <sys/prctl.h>	245	#include <sys/prctl.h>
		246
		247	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		248	# define stat kernelstat
		249	# define stat64 kernelstat64
		250	# include <asm/stat.h>
		251	# undef stat
		252	# undef stat64
		253	#else
		254	# define kernelstat stat
		255	# define kernelstat64 stat64
		256	#endif
222		257
223	#define COPY_STATDATA \	258	#define COPY_STATDATA \
224	req->statdata->st_dev = statdata.st_dev; \	259	req->statdata->st_dev = statdata.st_dev; \
225	req->statdata->st_ino = statdata.st_ino; \	260	req->statdata->st_ino = statdata.st_ino; \
226	req->statdata->st_mode = statdata.st_mode; \	261	req->statdata->st_mode = statdata.st_mode; \
…		…
242	aio_req req;	277	aio_req req;
243	int errno;	278	int errno;
244		279
245	/* this is very much kernel-specific :(:(:( */	280	/* this is very much kernel-specific :(:(:( */
246	/* we rely on gcc's ability to create closures. */	281	/* we rely on gcc's ability to create closures. */
247	_syscall3(int,read,int,fd,char *,buf,size_t,count)	282	_syscall3(__kernel_size_t, read , unsigned int, fd, char *, buf, __kernel_size_t, count)
248	_syscall3(int,write,int,fd,char *,buf,size_t,count)	283	_syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count)
249		284
250	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	285	_syscall3(long, open, char *, pathname, int, flags, int, mode)
251	_syscall1(int,close,int,fd)	286	_syscall1(long, close, unsigned int, fd)
		287	_syscall1(long, unlink, char *, filename);
		288	_syscall1(long, fsync, unsigned int, fd);
252		289
253	#ifdef __NR_pread64	290	#ifndef __NR_fdatasync
254	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)	291	# define __NR_fdatasync __NR_fsync
255	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lo,unsigned int,offset_hi)
256	#elif __NR_pread
257	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
258	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
259	#else
260	# error "neither pread nor pread64 defined"
261	#endif	292	#endif
		293	_syscall1(long, fdatasync, unsigned int, fd);
262		294
		295	#if BYTE_ORDER == LITTLE_ENDIAN
		296	# define LOFF_ARG(off) (off & 0xffffffff), (off >> 32)
		297	#elif BYTE_ORDER == BIG_ENDIAN
		298	# define LOFF_ARG(off) (off >> 32), (off & 0xffffffff)
		299	#endif
263		300
		301	#ifndef __NR_pread64
		302	# define __NR_pread64 __NR_pread
		303	# define __NR_pwrite64 __NR_write
		304	#endif
		305	_syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf,
		306	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		307	_syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf,
		308	__kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl)
		309	_syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count);
		310
264	#ifdef __NR_stat64	311	#if __NR_stat64
265	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	312	_syscall2(long, stat64 , const char , filename, struct kernelstat64 , buf)
266	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	313	_syscall2(long, lstat64, const char , filename, struct kernelstat64 , buf)
267	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	314	_syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf)
268	#elif __NR_stat	315	#elif __NR_stat
269	_syscall2(int,stat, const char , filename, struct stat , buf)	316	_syscall2(long, stat , const char , filename, struct kernelstat , buf)
270	_syscall2(int,lstat, const char , filename, struct stat , buf)	317	_syscall2(long, lstat, const char , filename, struct kernelstat , buf)
271	_syscall2(int,fstat, int, fd, struct stat *, buf)	318	_syscall2(long, fstat, int , fd , struct kernelstat *, buf)
272	#else	319	#else
273	# error "neither stat64 nor stat defined"	320	# error "neither stat64 nor stat defined"
274	#endif	321	#endif
275		322
276	_syscall1(int,unlink, char *, filename);	323	/* the following two calls might clobber errno */
277
278	sigprocmask (SIG_SETMASK, &fullsigset, 0);	324	sigprocmask (SIG_SETMASK, &fullsigset, 0);
279	prctl (PR_SET_PDEATHSIG, SIGKILL);	325	prctl (PR_SET_PDEATHSIG, SIGKILL);
280		326
281	/* then loop */	327	/* then loop */
282	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	328	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
…		…
284	req->thread = thr;	330	req->thread = thr;
285	errno = 0; /* strictly unnecessary */	331	errno = 0; /* strictly unnecessary */
286		332
287	switch (req->type)	333	switch (req->type)
288	{	334	{
289	#ifdef __NR_pread64
290	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	335	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
291	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length, req->offset & 0xffffffff, req->offset >> 32); break;	336	case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break;
		337	case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break;
		338
		339	#if __NR_stat64
		340	struct kernelstat64 statdata;
		341	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		342	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		343	case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break;
292	#else	344	#else
293	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	345	struct kernelstat statdata;
294	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	346	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		347	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		348	case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break;
295	#endif	349	#endif
296	#ifdef __NR_stat64	350
297	struct stat64 statdata;
298	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
299	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
300	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
301	#else
302	struct stat statdata;
303	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
304	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
305	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
306	#endif
307	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	351	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
308	case REQ_CLOSE: req->result = close (req->fd); break;	352	case REQ_CLOSE: req->result = close (req->fd); break;
309	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	353	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		354
		355	case REQ_FSYNC: req->result = fsync (req->fd); break;
		356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
310		357
311	case REQ_QUIT:	358	case REQ_QUIT:
312	default:
313	write (respipe[1], (void *)&req, sizeof (req));	359	write (respipe[1], (void *)&req, sizeof (req));
314	return 0;	360	return 0;
		361
		362	default:
		363	req->result = ENOSYS;
		364	break;
315	}	365	}
316		366
317	req->errorno = errno;	367	req->errorno = errno;
318	write (respipe[1], (void *)&req, sizeof (req));	368	write (respipe[1], (void *)&req, sizeof (req));
319	}	369	}
…		…
352	void	402	void
353	max_parallel(nthreads)	403	max_parallel(nthreads)
354	int nthreads	404	int nthreads
355	PROTOTYPE: $	405	PROTOTYPE: $
356	CODE:	406	CODE:
		407	{
357	int cur = started;	408	int cur = started;
358	while (cur > nthreads)	409	while (cur > nthreads)
359	{	410	{
360	end_thread ();	411	end_thread ();
361	cur--;	412	cur--;
362	}	413	}
363		414
364	while (started > nthreads)	415	while (started > nthreads)
365	{	416	{
366	fd_set rfd;	417	poll_wait ();
367	FD_ZERO(&rfd);
368	FD_SET(respipe[0], &rfd);
369
370	select (respipe[0] + 1, &rfd, 0, 0, 0);
371	poll_cb (aTHX);	418	poll_cb (aTHX);
372	}	419	}
		420	}
373		421
374	void	422	void
375	aio_open(pathname,flags,mode,callback)	423	aio_open(pathname,flags,mode,callback)
376	SV * pathname	424	SV * pathname
377	int flags	425	int flags
378	int mode	426	int mode
379	SV * callback	427	SV * callback
380	PROTOTYPE: $$$$	428	PROTOTYPE: $$$$
381	CODE:	429	CODE:
		430	{
382	aio_req req;	431	aio_req req;
383		432
384	Newz (0, req, 1, aio_cb);	433	Newz (0, req, 1, aio_cb);
385		434
386	if (!req)	435	if (!req)
…		…
392	req->fd = flags;	441	req->fd = flags;
393	req->mode = mode;	442	req->mode = mode;
394	req->callback = SvREFCNT_inc (callback);	443	req->callback = SvREFCNT_inc (callback);
395		444
396	send_req (req);	445	send_req (req);
		446	}
397		447
398	void	448	void
399	aio_close(fh,callback)	449	aio_close(fh,callback)
400	InputStream fh	450	InputStream fh
401	SV * callback	451	SV * callback
402	PROTOTYPE: $$	452	PROTOTYPE: $$
		453	ALIAS:
		454	aio_close = REQ_CLOSE
		455	aio_fsync = REQ_FSYNC
		456	aio_fdatasync = REQ_FDATASYNC
403	CODE:	457	CODE:
		458	{
404	aio_req req;	459	aio_req req;
405		460
406	Newz (0, req, 1, aio_cb);	461	Newz (0, req, 1, aio_cb);
407		462
408	if (!req)	463	if (!req)
409	croak ("out of memory during aio_req allocation");	464	croak ("out of memory during aio_req allocation");
410		465
411	req->type = REQ_CLOSE;	466	req->type = ix;
412	req->fd = PerlIO_fileno (fh);	467	req->fd = PerlIO_fileno (fh);
413	req->callback = SvREFCNT_inc (callback);	468	req->callback = SvREFCNT_inc (callback);
414		469
415	send_req (req);	470	send_req (req);
		471	}
416		472
417	void	473	void
418	aio_read(fh,offset,length,data,dataoffset,callback)	474	aio_read(fh,offset,length,data,dataoffset,callback)
419	InputStream fh	475	InputStream fh
420	UV offset	476	UV offset
…		…
437	PROTOTYPE: $$$$$$	493	PROTOTYPE: $$$$$$
438	CODE:	494	CODE:
439	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	495	read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
440		496
441	void	497	void
		498	aio_readahead(fh,offset,length,callback)
		499	InputStream fh
		500	UV offset
		501	IV length
		502	SV * callback
		503	PROTOTYPE: $$$$
		504	CODE:
		505	{
		506	aio_req req;
		507
		508	if (length < 0)
		509	croak ("length must not be negative");
		510
		511	Newz (0, req, 1, aio_cb);
		512
		513	if (!req)
		514	croak ("out of memory during aio_req allocation");
		515
		516	req->type = REQ_READAHEAD;
		517	req->fd = PerlIO_fileno (fh);
		518	req->offset = offset;
		519	req->length = length;
		520	req->callback = SvREFCNT_inc (callback);
		521
		522	send_req (req);
		523	}
		524
		525	void
442	aio_stat(fh_or_path,callback)	526	aio_stat(fh_or_path,callback)
443	SV * fh_or_path	527	SV * fh_or_path
444	SV * callback	528	SV * callback
445	PROTOTYPE: $$	529	PROTOTYPE: $$
446	ALIAS:	530	ALIAS:
447	aio_lstat = 1	531	aio_lstat = 1
448	CODE:	532	CODE:
		533	{
449	aio_req req;	534	aio_req req;
450		535
451	Newz (0, req, 1, aio_cb);	536	Newz (0, req, 1, aio_cb);
452		537
453	if (!req)	538	if (!req)
…		…
471	}	556	}
472		557
473	req->callback = SvREFCNT_inc (callback);	558	req->callback = SvREFCNT_inc (callback);
474		559
475	send_req (req);	560	send_req (req);
		561	}
476		562
477	void	563	void
478	aio_unlink(pathname,callback)	564	aio_unlink(pathname,callback)
479	SV * pathname	565	SV * pathname
480	SV * callback	566	SV * callback
481	PROTOTYPE: $$	567	PROTOTYPE: $$
482	CODE:	568	CODE:
		569	{
483	aio_req req;	570	aio_req req;
484		571
485	Newz (0, req, 1, aio_cb);	572	Newz (0, req, 1, aio_cb);
486		573
487	if (!req)	574	if (!req)
…		…
491	req->data = newSVsv (pathname);	578	req->data = newSVsv (pathname);
492	req->dataptr = SvPV_nolen (req->data);	579	req->dataptr = SvPV_nolen (req->data);
493	req->callback = SvREFCNT_inc (callback);	580	req->callback = SvREFCNT_inc (callback);
494		581
495	send_req (req);	582	send_req (req);
		583	}
496		584
497	int	585	int
498	poll_fileno()	586	poll_fileno()
499	PROTOTYPE:	587	PROTOTYPE:
500	CODE:	588	CODE:
…		…
508	CODE:	596	CODE:
509	RETVAL = poll_cb (aTHX);	597	RETVAL = poll_cb (aTHX);
510	OUTPUT:	598	OUTPUT:
511	RETVAL	599	RETVAL
512		600
		601	void
		602	poll_wait()
		603	PROTOTYPE:
		604	CODE:
		605	poll_wait ();
		606
513	int	607	int
514	nreqs()	608	nreqs()
515	PROTOTYPE:	609	PROTOTYPE:
516	CODE:	610	CODE:
517	RETVAL = nreqs;	611	RETVAL = nreqs;

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.21 by root, Fri Aug 6 17:18:08 2004 UTC vs. Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC

Diff Legend

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.21 by root, Fri Aug 6 17:18:08 2004 UTC vs.
Revision 1.31 by root, Sun Jul 10 01:02:51 2005 UTC